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12240718906 = 2131672819143
BaseRepresentation
bin10110110011001101…
…01000110000111010
31011121002001221121111
423121212220300322
5200032111001111
65342345030534
7612223252063
oct133146506072
934532057544
1012240718906
115211626319
12245748544a
131200ca7950
1484199d56a
154b996ea21
hex2d99a8c3a

12240718906 has 16 divisors (see below), whose sum is σ = 19891880064. Its totient is φ = 5615730864.

The previous prime is 12240718873. The next prime is 12240718927. The reversal of 12240718906 is 60981704221.

12240718906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405230 + ... + 1413913.

It is an arithmetic number, because the mean of its divisors is an integer number (1243242504).

Almost surely, 212240718906 is an apocalyptic number.

12240718906 is a deficient number, since it is larger than the sum of its proper divisors (7651161158).

12240718906 is a wasteful number, since it uses less digits than its factorization.

12240718906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819325.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 12240718906 in words is "twelve billion, two hundred forty million, seven hundred eighteen thousand, nine hundred six".

Divisors: 1 2 13 26 167 334 2171 4342 2819143 5638286 36648859 73297718 470796881 941593762 6120359453 12240718906